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Laser Beam Weldability of High-Manganese Austenitic and Duplex Stainless Steel Sheets

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Abstract

Manganese alloyed stainless steels represent a cost-effective alternative to conventional CrNi- stainless steels due to strong fluctuations of the market prices for nickel seen during the last years. In CrMnNi steels, nickel is partially replaced by lower-cost manganese and small amounts of nitrogen for stabilization of the austenitic phase. This also brings benefits regarding the mechanical properties, as it results in an increased material strength. Laser beam welding of such materials was investigated for direct comparison with standard CrNi steels. Main emphasis was laid on finding adequate process parameters to achieve a stable welding process and obtain a good weld quality. Two different laser sources, a 4.4 kW Nd:YAG and a 5 kW CO2 laser, were used to weld 1.5 mm stainless steel sheets in continuous wave mode. A high-Mn austenitic (1.4376) and a lean duplex (1.4162) steel, as well as the standard austenitic (1.4301) and duplex (1.4362) grades were selected as test materials. Both butt and lap joint configurations were studied. Experiments were carried out systematically, varying the welding speed, laser power and focal point position in order to determine adequate process windows. The influence of the shielding gas type and flow rate on the process stability and the weld quality were investigated. The effects of weld edge preparation on the weld appearance and quality levels attained were also examined. The obtained welded joints were subjected to radiographic tests for detection of internal imperfections. Also a metallurgical characterization of the samples regarding the resulting phase composition or balance and hardness depending on the welding process parameters was conducted. Furthermore, tensile and potentiodynamic tests were performed to evaluate the mechanical and corrosion properties, respectively. The results provide an insight into the advantages and limitations of the laser beam welding process for joining high-manganese alloyed stainless steels. Conditions for the production of defect-free and corrosion-resistant welds having good mechanical properties could be determined.

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References

  1. Brook Hunt: Nickel in perspective, Wood Mackenzie Ltd, January 2010.

  2. Charles J.: The new 200-series: an alternative answer to Ni surcharge? risks and opportunities? La Revue de Métallurgie — CIT, June 2007, pp. 308-317.

  3. Kim K., Kim Y., Lee Y., Park S. and Lee W.: Application study of an automotive structural part with nitrogen-alloyed high strength austenitic stainless steel, In Proceedings of the SAE World Congress, 2004.

  4. Klueh R.L., Maziasz P.J. and Lee E.H.: Manganese as an austenite stabilizer in Fe-Cr-Mn-C-steels, Materials Science and Engineering: A, 1988, vol. 102, no. 1, pp. 115–124.

    Article  Google Scholar 

  5. Singhal L.K.: Stainless steels recent developments and outlook: Demand, capacity and product development, In Joint India/OECD/IISI Workshop, 2006.

  6. Toor I., Hyun P.J. and Kwon H.S.: Development of high Mn-N duplex stainless steel for automobile structural components, Corrosion Science, 2008, vol. 50, no. 2, pp. 404–410.

    Article  CAS  Google Scholar 

  7. Suutala N.: Effect of manganese and nitrogen on the solidification mode in austenitic stainless steel welds, Metallurgical and Materials Transactions A, 1982, vol. 13, no. 12, pp. 2121–2130.

    Article  CAS  Google Scholar 

  8. Zuev L.B., Dubovik N.A. and Pak V.E.: Nature of hardening of high-nitrogen steels based on iron-chromium-manganese austenite, Steel in Translation, 1997, vol. 27, no. 10, pp. 71–75.

    Google Scholar 

  9. Myslowicki S.: Das Auscheidungs- und Korrosionsverhalten eines stickstofflegierten, austenitischen ChromNickel-Stahls mit abgesenkten Nickelgehalt, Precipitation and corrosion behaviour of a nitrogen alloyed austenitic chromium-nickel steel with lowered nickel content, Shaker Verlag, 2007 (in German).

  10. Ratte E., Leonhardt S., Bleck W., Franzen M. and Urban P.: Energy absorption behaviour of austenitic and duplex stainless steels in a crash box geometry, Steel Research International, 2006, vol. 77, no. 9-10, pp. 692–697.

    CAS  Google Scholar 

  11. Lothongkum G., Wongpaya P., Morito S., Furuhara T. and Maki T.: Effect of nitrogen on corrosion behavior of 28Cr-7 Ni duplex and microduplex stainless steels in air-saturated 3.5wt% NaCl solution, Corrosion Science, 2006, vol. 48, no. 1, pp. 137–153.

    Article  CAS  Google Scholar 

  12. Tsuge H., Tartutani Y. and Kudo T.: The effect of nitrogen on the localized corrosion resistance of duplex stainless steel simulated weldments, Corrosion, 1988, vol. 44, no. 5, pp. 305–314.

    Article  CAS  Google Scholar 

  13. 200 series stainless steel CrMn grades, ASSDA Technical Bulletin, Edition 1, October 1–3, 2006.

  14. Westin E.M.: Welds in the Lean Duplex Stainless Steel LDX 2101 — Effect of microstructure and weld oxides on corrosion properties, PhD thesis, Royal Institute of Sweden School of Industrial Engineering and Management Department of Materials Science and Engineering Division of Physical Metallurgy SE 100-44 Stockholm Sweden, 2008, p. 6.

  15. Honeycombe J. and Gooch T.G.: Effect of manganese on cracking and corrosion behavior of fully austenitic stainless-steel weld-metals, Metal Construction and British Welding Journal, 1972, vol. 4, no. 12, pp. 456–460.

    CAS  Google Scholar 

  16. Falkenberg F., Johansson E., Larsson J. and Taulavuori T.: Properties of various low-nickel stainless steels in comparison to AISI 304, in Stainless Steel World Conference & Expo 2007, Maastricht, Netherlands, 2007.

    Google Scholar 

  17. Tzaneva B.R., Fachikov L.B. and Raicheff R.G.: Pitting corrosion of Cr-Mn-N steel in sulphuric acid media, Journal of Applied Electrochemistry, 2006, vol. 36, no. 3, pp. 347–353.

    Article  CAS  Google Scholar 

  18. Zardiackas L.D., Williamson S., Roach M. and Bogan J.-A.: Comparison of anodic polarization and galvanic corrosion of a low-nickel stainless steel to 316Ls and 22Cr-13Ni-5Mn stainless steels, Stainless Steels for Medical and Surgical Applications, 2003, STP1483, pp. 107–118.

    Article  Google Scholar 

  19. Sölch R. and Hoffmann R.: Laser beam welding for continuous production of longitudinally welded pipes in chromium-nickel-steels, Tube & Pipe, March/April 2003, pp. 92-95.

  20. Uhlig G, Behler K. and Behr F.: Laserstrahl-Schmelzschweißen nichtrostender Stähle, Laser beam fusion welding of stainless steels, Bänder Bleche Rohre, 1992, vol. 33, no. 4, pp. 60–68 (in German).

    CAS  Google Scholar 

  21. Irving B.: Lasers continue to penetrate automotive production lines, Welding Journal, June 2000, pp. 33-36.

  22. Katayama S.: Fundamentals of fiber laser welding, In Proceedings of the international Colloquium High Power Laser Welding, Berlin, 2009.

  23. Khan P.A.A., Debroy T. and David A.: Laser beam welding of high-manganese stainless steels — examination of alloying element loss and microstructural changes, Welding Research Supplement, January 1988, pp. 1-s-7-s.

  24. Brooks J.A.: Weldability of high N, high Mn austenitic stainless steel, Welding Research Supplement, June 1975, pp. 189-s-195-s.

  25. Amigo V., Bonache V., Teruel L. and Vicente A.: Mechanical properties of duplex stainless steel laser joints, Welding International, 2006, vol. 20, no. 5, pp. 361–366.

    Article  Google Scholar 

  26. Hoffmeister H. and Lothongkum G.: Effects of chemical composition of duplex stainless steels on microstructure and pitting corrosion after solution heat treatment and various weld simulation cooling cycles, Doc. IIW-1210, Welding in the World, 1994, vol. 33, no. 2, pp. 91–96.

    CAS  Google Scholar 

  27. Hoffmeister H., Mundt R. and Berner K.D.L.: Effect of weld metal composition and welding conditions on delta-ferrite and CVN toughness of austenitic-ferritic weld metal, Steel Research, 1985, vol. 56, no. 3, pp. 163–166.

    CAS  Google Scholar 

  28. DIN EN 1435:2004, Zerstörungsfreie Prüfung von Schweißverbindungen — Durchstrahlungsprüfung von Schmelzschweißverbindungen, Non-destructive testing of welds — Radiographic testing of welded joints, DIN Deutsches Institut für Normung, German Institute for Standardization, e.V., Berlin, 2004.

  29. DIN EN ISO 6507-1:2006, Härteprüfung nach Vickers — Teil 1: Prüfverfahren, Metallic materials — Vickers hardness test — Part 1: Test method, DIN Deutsches Institut für Normung, German Institute for Standardization, e.V., Berlin, 2006.

  30. EN ISO 6892-1:2009; Metallic materials — Tensile testing - Part 1: Method of test at room temperature, DIN Deutsches Institut für Normung, German Institute for Standardization, e.V., Berlin, 2009.

  31. DIN 50918:1978, Korrosion der Metalle; Elektrochemische Korrosionsuntersuchungen, Corrosion of metals; electrochemical corrosion tests, DIN Deutsches Institut für Normung, German Institute for Standardization, e.V., Berlin, 1978.

  32. Kawahito Y., Mitzutani M. and Katayama S.: Investigation of high-power fibre laser welding phenomena of stainless steel, Transactions of JWRI, 2007, vol. 36, no. 2, pp. 11–15.

    CAS  Google Scholar 

  33. DIN EN ISO 13919-1:1996, Schweißen — Elektronen-und Laserstrahl-Schweißverbindungen; Leitfaden für Bewertungsgruppen für Unregelmäßigkeiten — Teil 1: Stahl, Welding — Electrons and laser beam welded joints; guidance on quality levels for imperfections — Part 1: Steel, DIN Deutsches Institut für Normung, German Institute for Standardization, e.V., Berlin, 1996.

  34. Hammar Ö. and Svensson U.: Influence of steel composition on segregation and microstructure during solidification of austenitic stainless steels, Solidification and Casting of Metals, The Metals Society, 1979, pp. 401-410.

  35. Lienert T.J. and Lippold J.C.: Improved weldability diagram for pulsed laser welded austenitic stainless steels, Science and Technology of Welding and Joining, 2003, vol. 8, no. 1, pp. 1–9.

    Article  CAS  Google Scholar 

  36. Dong W., Kokawa H., Sato Y. and Tsukamoto S.: Nitrogen absorption by iron and stainless steels during CO2 laser welding, Metallurgical and Materials Transactions B, February 2003, vol. 34, no. 1, pp. 75–82.

    Article  Google Scholar 

  37. Hoffmeister H. and Lothongkum G.: Quantitative effects of nitrogen contents and cooling cycles on deltagamma transformation, chromium nitride precipitation and pitting corrosion after weld simulation of duplex stainless steels, in Duplex Stainless Steels′94, vol. 2, 1994.

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Quiroz, V., Gumenyuk, A. & Rethmeier, M. Laser Beam Weldability of High-Manganese Austenitic and Duplex Stainless Steel Sheets. Weld World 56, 9–20 (2012). https://doi.org/10.1007/BF03321140

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